gag-han



(No Model.) 7 2 Sheets-Sheet 1.

v J. GAGHAN.

- WALL HYDRANT.

No. 536,801. Patented Apr. 2. 1895.

L/O/LIL Ga hcuv amoawbo z (No Model.) 2 Sheets-Sheet 2.

J. GAGHAN. WALL HYDRANT.

No. 536,801. Patented Apr. 2, 1895.

UNITED STATES PATENT OFFICE.

JOHN GAGHAN, OF WVASHINGTON, DISTRICT OF COLUMBIA.

WALL-HYDRANT.

QPECIFIGATION forming part of Letters Patent No. 536,801, dated April 2, 1 895.

Application filed May 10, 1894:- Scrial No. 510,709- (No model.)

To all whom, it may concern.-

Be it known that 1, JOHN GAGHAN,a citiZ of the United States, residing at Washington, District of Columbia, have invented certain new and useful Improvements in Wall-Hydrants, of which the following is a specification.

My invention relates to wall hydrants or connections for the attachment of hose, and consists in a novel construction of the same whereby the water contained within the body of the device is permitted to drain off when the valve is closed, and the danger of freezing is avoided; and whereby also great facility of attachment and repair is afforded.

The form and the materials of which the device is made may be varied considerably without departing from the limits of my in vention, but the construction shown in the drawings and now described will be found very satisfactory in practice.

Figure 1 is a perspective view of my improved device; and Fig. 2 is a longitudinal central sectional view of the same, illustrating the manner of covering over the inner end of the device and its connection with the service pipe.

A indicates a casting comprising a face plate a, a shell or water-way b on the rear face,

and two necks cand d, projecting respectively from the front and rear faces of the casting. .The neck 0 is externally threaded to receive an ordinary hose coupling, and the neck 01 is internally threaded to receive a correspondingly threaded end of a section B of pipe, which is cut to a length suited to the thickness of the wall in which the. device is to be used.

C indicates a valve-shell or body which is screwed or otherwise secured upon the rear or inner end of pipe section B, and is formed with a valve seat e, which is represented in Fig. 2 as tapering or conical, but which may be of almost any desired form.

l small pipe or tube D communicates with the shell C and extends thence forward and opens into the water-way b, said pipe being advisably arranged to incline downward more or less toward said water-way in order that the water from pipe B may-drain off through said pipe D, even though the device as awhole beplaced slightly out of horizontal position, and higher at its outer than at its inner end.

The pipe B may be screwed at either or both ends into the shell 0 and the casting A, or may be screwed on at one end and sweated or soldered at the other, or joined in any common and well known way, and the same is trueof pipe D.

E indicates acasting comprising a face platefand neck g, which plate is secured to the face plate a of casting A by means of tap bolts h or their equivalents, tap bolts being preferred because of the facility afforded by them for removal or replacement of the plate E. Suitable packing 'iwill ordinarily be employed between the face plates a and f, and if desired a neck may be formed on the rear face of plate E as shown in Fig. 2, and extended into the mouth of the opening in casting A with a slight bevel which shall itself insure a close joint. The neck 9 of plate E is provided with a central opening which is tapped to receive the threaded portion j of a valve stem F, which stem is squared or otherwise fashioned to receive a wrench at its forward or outer end, and at its rear end carries a valve plug, disk, or washer 7c,-a conical rubber plug being indicated in the drawings and preferred in practice. When such conical plug is employed, the valve rod or stem F is provided with a collar Z against which the plug it is held by a nut m screwed upon the threaded inner or rear end of the rod F, a washer n being interposed between the plug and the nut as indicated. By turning the nut the plug may be expanded as required, and compensation may be thus made for wear of the plug or its seat.

G indicates a packing gland or cap screwed upon the threaded outer end of neck g and serving the double purpose of holding a body of packing 19 around the valve stem, and of encircling the polygonal outer end of said valve stem so as to prevent the turning of the stem by anyimplement other than a specially designed wrench. Such construction tends toprevent injury to the device by children or meddlesome persons. 7

' In using the device, which will be made in different lengths according to the thickness of the wall in which it"is to be placed,'a suitable opening will be left in the wall, or the brickwork or masonry will be built around the device in such manner that the face plate a shall come squarely into contact with the outer face of the wall, and that the body of the device shall be closely surrounded by the brickwork or masonry, the small space between the brick and the device being preferably filled in with mortar to hold the same in a firm and solid manner, the device being designed to be left permanently in the wall and at no time removed.

In order that there may be no discoloration of the plastering by reason of the sweating of the pipes; or in other words, by the condensation of moisture thereon, I preferably arrange the fixture in the manner indicated; that is to say, the service pipe which is laid in the wall is provided with a coupling H of any suitable form according to the direction in which the pipe is carried, and this coupling and the pipe are sunk into the wall sufficiently to permit a wire netting or so called metal lathing I, to be placed over it and leave a space from one to three-fourths of an inch intervening between it and the pipe, the plaster being applied directly to the netting or lathing, as the case may be.

The device being thus constructed, and secured in the wall in either of the ways men-,

tioned, or by the two means combined, its operation is as follows: When it is desired to obtain water through the neck or outletc, or through a hose coupled thereto, the valve stem F is turned in proper direction to withdraw the valve plug from its seat, whereupon water flows from the service pipe J around said valve, and through pipe B into the waterway and outthrough the neck 0. When the valve is closed by turning the stem F in the reverse direction, the water contained in the casting A and in pipe B flows off through the neck or outlet 0, the pipe D serving to vent and drain the pipe B and thereby insuring the discharge of water from the latter. If pipe B is inclined downward toward its delivery end, the pipe D will act only as a vent. Were the pipe D omitted, water would be liable to remain in the pipe B, being held there by atmospheric pressure, and as a consequence there would be in cold weather a liability of freezing the water and bursting of the fixture. Moreover, if water should remain and freeze in the fixture, cold would be transmitted in many instances to the service pipe sufficiently to cause freezing of the water therein and bursting of the service pipe.

By giving the pipe D a downward inclination, any water which might fail to pass off from pipe B by reason of its being backwardly inclined, will drain off through said pipe D, and thus the fixture will be entirely relieved of water.

In case it becomes necessary to renew the valve plug or to expand the same, the service water will be cut 05, the tap bolts it removed, and the plate E with its attached parts,-the packing gland or thimble G, and the valve stem and plug,will be withdrawn, and the valve plug will be renewed or expanded as required; or, in the event of an ordinary compression valve being employed, the disk will be renewed. This done, the parts will be replaced and secured in position by the tap bolts h h, the service pipe will be again opened, and the device is ready for operation.

It is obvious that the pipe B and shell 0 may be cast with the front casting A, or that any two of said parts may be cast together, in which case the pipe or vent D willbe formed in the casting. I prefer, however, the construction shown and described because of its cheapness and simplicity and because of the convenience with which it may be fitted to variation in the walls for which it may be required.

What I claim is- 1. A wall hydrant provided with a pipe or body to extend through the wall, a valve seat near its inner end, a valve stem extending from said seat to the outerend of the device, and an air tube or vent connecting the rear portion of the body with the forward end.

2. In combination with the casting A provided with face plate a, water-way b and necks c and d; the pipe B C, secured to neckd and provided with a valve seat; the valve stem F provided with a valve 70; a face plate E having a threaded opening to receive the threaded end of the valve stem.

8. In combination with casting A provided with face plate a; pipe B (J; valveseat e; the removable face plate E; means for fastening the latter to the face plate a of the casting A; and a valve stem F carried by the face plate E.

4. In combination with the casting A provided with face plate a, water-way b and necks c and d; the pipe B; the shell C provided with p a valve seat e; the elbow or coupling H connecting the shell with the service pipe; the removable face plate E provided with internally-threaded neck g; and the threaded valve stem F carrying at its inner end the valve k.

5. In combination with the casting A provided with water-way b' and necks c and d; the pipe B; the shell 0 provided with a valve seat e; the elbow or coupling H connecting the shell with the service pipe; the removable face plate E provided with internallythreaded neck g; the threaded valve stem F carrying at its inner end the valve 70; and the pipe D extending from the shell 0 to the Water-way b.

In witness whereof I hereunto set my hand in the presence of two witnesses.

' JOHN GAGIIAN.

Witnesses:

FRANK N. DEVEREUX, O. S. RICHARDS. 

